1666705820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{9277}}^1$

素因数の和:9990

約数の個数: 48

約数和(自身を含む): 3775181088

約数和(自身を除く): 2108475268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 691, 1382, 2764, 3455, 6910, 8983, 9277, 13820, 17966, 18554, 35932, 37108, 44915, 46385, 89830, 92770, 120601, 179660, 185540, 241202, 482404, 603005, 1206010, 2412020, 6410407, 12820814, 25641628, 32052035, 64104070, 83335291, 128208140, 166670582, 333341164, 416676455, 833352910, 1666705820]

約数ペア:

[(1, 1666705820), (2, 833352910), (4, 416676455), (5, 333341164), (10, 166670582), (13, 128208140), (20, 83335291), (26, 64104070), (52, 32052035), (65, 25641628), (130, 12820814), (260, 6410407), (691, 2412020), (1382, 1206010), (2764, 603005), (3455, 482404), (6910, 241202), (8983, 185540), (9277, 179660), (13820, 120601), (17966, 92770), (18554, 89830), (35932, 46385), (37108, 44915)]